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Finding the Fourth Proportional to 227.37, 340.80 and 97.31

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Solution

The fourth proportional to 227.37, 340.80 and 97.31 is: 145.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    227.37 : 340.80 = 97.31 : x
  2. Step 2: Convert to fraction form
    227.37/340.80 = 97.31/x
  3. Step 3: Cross multiply
    227.37x = 340.80 × 97.31
  4. Step 4: Simplify right side
    227.37x = 33,161.06
  5. Step 5: Solve for x
    x = 33,161.06/227.37
  6. Step 6: Final answer
    x = 145.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.